(0 17 8 6 2)(1 5 3 20 4)(7 11 9)(10 14 12)(13 18 15)(16 21 19)
ALLOWS (11/8)-SEQUENCE
1: (0 2 6)

(0 2 17 8 6)(1 5 3 20 4)(7 11 9)(10 14 12)(13 18 15)(16 21 19)
2: (1 20 4)

(0 2 17 8 6)(1)(3 20 5)(4)(7 11 9)(10 14 12)(13 18 15)(16 21 19)
3: (0 2 17)

(0 8 6)(1)(2)(3 20 5)(4)(7 11 9)(10 14 12)(13 18 15)(16 21 19)(17)
4: (16 21 19)

(0 8 6)(1)(2)(3 20 5)(4)(7 11 9)(10 14 12)(13 18 15)(16)(17)(19)(21)